169 results about "Solid surface" patented technology

The invention discloses a method and a device for measuring a dynamic contact angle of liquid on a solid surface. The method comprises the following steps: constructing a to-be-measured system containing a first liquid phase, a fluid phase and a solid phase; immersing the to-be-detected surface of the solid phase in the environment phase upwards or downwards; an end surface object is arranged opposite to the to-be-detected surface, and the two are immersed in the same environment phase; the relative distance and position of the two are adjusted, and a longitudinal fluid bridge is formed through the liquid adding device; the camera device obtains a fluid bridge interface contour image from the side surface; horizontally moving the surface of the end surface object or the solid phase, and applying transverse lateral dragging acting force to the fluid bridge to promote the fluid bridge to deform and contact the peripheral line to move or be about to move; and recording the time sequence change of the image, analyzing and calculating to obtain the time change relationship between the contact angle value and the three-phase contact point position value, and further determining the static, forward and backward contact angles and the contact angle hysteresis value. The method is simple and accurate, has wide applicability, and can cover reliable dynamic contact angle data measurement from hydrophilic to super-hydrophobic surfaces.

The invention belongs to the technical field of wind power generation equipment, and discloses a sliding bearing, a wind power main gear box and a wind turbine generator. The sliding bearing includes a sliding layer. The sliding layer is deposited on the surface of the first member. When the first component and the second component rotate relatively, a lubricating oil layer is formed between the sliding layer and the second component, and the lubricating oil layer serves as a lubricating film with certain bearing capacity and can separate the sliding layer from the solid surface of the second component, so that dry friction is converted into liquid friction among molecules in the lubricating oil layer; the friction coefficient between the sliding layer and the second component is remarkably reduced, and therefore abrasion between the sliding layer and the second component is reduced. The sliding bearing has the advantages of being small in size, light in weight and good in economical efficiency. The sliding layer is made of the wear-resistant material and is deposited on the first component, so that the sliding layer forms a high-hardness and wear-resistant coating on the surface of the first component, and the service life of the sliding bearing can be prolonged.

A heavy-duty surface mount post system includes a post base with a mounting member and a post designed to slide over the tube. Shims are mounted between the mounting member and the post to create a tighter fit and to resist galvanic corrosion when the base and post are made of different materials, such as steel and aluminum. Optional decorative skirts provide additional stability and aesthetic appeal. The system is ideal for fencing installations on concrete or other solid surfaces, accommodating a range of tolerances while simplifying assembly.

The invention provides a preparation method and application of novel acrylic continuous pre-polymerized resin. The preparation method comprises the following steps: preheating an MMA solution containing azodiisobutyronitrile to 50-60 DEG C, and enabling the preheated MMA solution to flow into the microreactor main body; the pure MMA is preheated to 90-95 DEG C and then flows into the microreactor main body; and mixing the inflowing materials, controlling the reaction temperature to be 120-130 DEG C, the pressure to be 0.2-0.3 MPa and the retention time to be 5-15 minutes, and carrying out continuous polymerization reaction to prepare the PMMA prepolymer resin. According to the technology, accurate regulation and control of the molecular weight and distribution of the PMMA / MMA prepolymer are realized through a continuous process under high temperature and high pressure, and the goal can be achieved without depending on a chain transfer agent. The method is safe and controllable, the product of the method is perfectly compatible with a solid plane material curing system of'an initiator first and then an accelerant ', and the energy consumption and the safety risk are effectively reduced while the production efficiency and the productivity are remarkably improved.

The invention discloses a preparation method of an environment-friendly 3D printing three-dimensional surface floor, which comprises the following steps: S1, drawing a plane drawing of the floor, generating a 3D model of the floor by using a computer, and obtaining all layered structures and arrangement modes for forming the floor; and S2, raw materials for preparing the floor are prepared according to the 3D model of the floor in the S1, the raw materials are conveyed into a 3D printer for 3D printing, and all layered structures for the floor are printed. Through a sustainable raw material system, a formaldehyde-free laminating process, high-precision 3D printing texture forming, a three-layer environment-friendly protection layer, a bio-based edge sealing technology and an internet-of-things intelligent production system, production energy consumption is reduced by 40%, waste is reduced by 50%, closed-loop recovery is achieved, meanwhile, the international environment protection certification is met, the production efficiency is improved by 30%, and the production cost is reduced. And a full-chain green manufacturing scheme for synergistically improving the environmental protection performance, the production efficiency and the product quality is formed, and the double-carbon target requirement is met.

The application discloses a kind of anti-condensation regulation and control methods, device, medium and equipment of ring net cabinet, belong to regulation and control field.The present application obtains the multi-parameter sensing data inside and outside ring net cabinet;Data is input into the condensation risk assessment model constructed based on kelvin capillary condensation theory and solid surface multilayer adsorption theory, and the condensation risk coefficient is obtained by coupling calculation of condensation risk parameter in the model, and four levels of no risk, low risk, medium risk and high risk are output;According to the risk level output, the corresponding preset control strategy is called to execute the regulation and control operation on ring net cabinet.The present application effectively solves the problem that the prior art cannot accurately and efficiently realize anti-condensation regulation and control.

The invention relates to an innovative system for retrieving and analysing acoustic signatures stored in solid surfaces such as stone and metal. The system uses advanced technologies such as high-precision vibration sensors, laser systems and artificial intelligence algorithms to analyse residual acoustic vibrations and reconstruct ancient sounds. The system can be used in archaeological studies, acoustic engineering and scientific research, opening up new horizons for understanding earlier civilisations and studying the effect of sound on solid materials.

The invention relates to the technical field of insulators, in particular to a high-voltage line column type porcelain insulator with high bending strength. The porcelain insulator comprises a porcelain insulator body which is sequentially provided with an upper iron cap, a porcelain core rod, a lower flange and an umbrella cover group from top to bottom. The hydrophobic rods are arranged on the surface of the umbrella skirt at the bottommost end in an array mode to form the isolation layer and the water isolation cavity, when liquid water flowing from top to bottom passes through the isolation layer, the top ends of the hydrophobic rods can cut off the continuity of a water film, meanwhile, a static air film intercepted by the water isolation cavity is combined to prevent the liquid water from infiltrating an umbrella skirt substrate material, and therefore the umbrella skirt substrate material is prevented from being damaged. Liquid water flowing through the umbrella skirt is forced to be converted into isolated water drops from a continuous water film through the synergistic effect, rolling is accelerated due to the fact that the contact area of the liquid water and the solid surface is reduced, the water film covering area and the residence time of the umbrella skirt surface are directly reduced in the process, and under the low-temperature condition, ice cores are difficult to grow and firmly adhere to the surface; and the bending strength of the porcelain is further improved.

Particulate aerogel material kit for grip enhancement, and related systems and methods, are generally described. Certain embodiments are related to interfaces comprising human skin, a layer of particulate aerogel material, and a solid surface. Methods of creating such interfaces, packaging the particulate aerogel material, and applications thereof (including kits for grip enhancement) are also described.

Single-cell multi-omics by co-encapsulating a single cell with two beads, the first an RNA barcoding bead having barcoded mRNA capture primer oligonucleotides attached on the bead surface; and the second a DNA barcoding bead having two types of oligonucleotides releasably attached to the surface: (1) barcoded adapter oligonucleotides that are complementary to oligonucleotides bound to the transposase that are eventually incorporated into gDNA fragments and (2) polyadenylated barcoded oligonucleotides containing the same barcode sequence as the adapters. In addition, integrated analysis of RNA and protein, including intracellular protein, from individual cells using similar co-encapsulation of a single cell, an RNA barcoding bead, and with / without a specific or non-specific protein binding bead in a microwell, to avoid protein fixation by first lysing the cell to liberate intracellular contents, and then capturing protein either on a solid surface or in solution with barcoded affinity reagents.

This invention relates to a deployable antenna with a semi-rigid composite material reflector, belonging to the field of antenna technology. It includes: a central part of the reflecting mechanism connected to a central column assembly, and the edge of the reflecting mechanism connected to a ring truss; the ring truss is connected to the central column assembly via a tension cable assembly, and the ring truss is used to control the shape changes of the reflecting mechanism. This invention comprehensively considers the coordination between the deployment process of the ring truss and the movement of the semi-rigid reflector, realizing the antenna's retraction and deployment with an ingenious structure and convenient operation. This deployable antenna, situated between a mesh surface and a solid surface, proposes a semi-rigid reflector deployable antenna configuration that simultaneously achieves both large size and high precision, providing a new solution for related engineering applications.

The invention relates to a method for dewatering a solid-liquid mixture, comprising the steps of providing a solid-liquid mixture; adding a drainage aid to the solid-liquid mixture; and reducing the liquid content in the solid-liquid mixture to ≤ 25% by mass. The invention further relates to a composition with a solid and a liquid to be separated from it, wherein the composition comprises a drainage aid that is surface-active and reduces a positive interaction between a surface of the solid and the liquid of the composition and / or has a porous and / or fibrous structure that facilitates the flow of the liquid through pores and / or along a surface.

The invention provides application of droplet merging induced bounce and a solid surface energy measuring system and method, and belongs to the technical field of surface science and precision measurement. Firstly, the invention provides an application of a droplet combination induced bounce phenomenon in solid surface energy measurement. Secondly, the invention provides a measuring system which comprises a liquid drop distribution unit, a merging induction unit, a high-speed image acquisition unit and a data processing and analyzing unit. Finally, a measuring method is provided, two liquid drops with similar sizes are prepared on the surface of a solid, and the liquid drops are induced to be combined and bounce; relevant parameters are extracted, and a Young's equation contact angle of the smooth surface is obtained based on an energy conservation model and a Cassie-Baxter model; and the total surface energy of the super-hydrophobic solid is obtained by simultaneously solving dispersion and polar components of the surface of the super-hydrophobic solid by using data of at least two liquids. According to the method, the surface energy is measured by using liquid drops and bounce, and the defect of low-surface-energy material measurement by a traditional contact angle method is overcome.

This invention belongs to the field of industrial vision intelligence and CNC machine tool processing technology, specifically relating to a method for determining machining allowance of CNC machine tool workpieces based on image recognition. The method includes: retrieving the design digital model point cloud; preprocessing the original point cloud data of the workpiece to be processed to obtain the workpiece point cloud; calculating the scanning confidence, solid surface weight, and liquid removal weight of each data point in the workpiece point cloud, and combining them to obtain the final usable weight; calculating the spatial alignment error based on the final usable weight; performing iterative registration between the workpiece point cloud and the design digital model point cloud; solving the three-dimensional rotation matrix and three-dimensional translation vector; aligning the spatial pose of the workpiece point cloud; and extracting the machining allowance data. This invention improves the spatial registration stability of unstructured visual data and enhances the accuracy of adaptive machining on CNC machine tools.

To provide surface-modified fibers and reinforcing fibers that are capable of enhancing the adhesiveness to rubber, without the use of resorcinol and formaldehyde, and a molded article using the same. Surface-modified fibers include fibers, and a surface-modifying layer covering at least a part of a surface of the fibers, and have a solid surface zeta potential on a surface of the surface-modifying layer of −20.0 to 30.0 mV.

The invention discloses a portable renewable cooling hydrogel composite material as well as a preparation method and application thereof. The portable renewable cooling hydrogel composite material comprises a three-dimensional network structure, porous solid particles and water, wherein the three-dimensional network structure is formed by cross-linking and curing macromolecules and an ionic cross-linking agent, and the porous solid particles are uniformly distributed in the three-dimensional network structure. The hydrogel composite material disclosed by the invention is beneficial to enhancing the diffuse reflection capability of sunlight, improving the optical reflectivity of the material and further improving the cooling performance, can be coated on a roof or other solid surfaces in situ without complex equipment during preparation, has good light reflectivity and evaporative cooling capability, can effectively reduce the surface temperature under sunlight, and is suitable for being used in the field of solar energy. The indoor cool feeling is kept; and after being dried, the composite material can be regenerated by spraying water, so that the composite material can be repeatedly used. The material is simple and convenient to prepare, low in cost and convenient to carry, and can be widely popularized in the fields of passive refrigeration, evaporative cooling, skin rehabilitation or building heat management and the like.

The invention provides a method for analyzing the wetting behavior of a liquid drop on a rough solid surface under the action of an electric field, and the method comprises the following steps: S1, building an initial simulation system and a simulation model based on a research and information collection result; s2, configuring operation parameters of the simulation model, and executing simulation calculation; s3, in the molecular dynamics simulation process, applying electric fields with different intensities, and monitoring the state change of the simulation system until the simulation system reaches dynamic balance; and S4, exporting the calculation data in the dynamic balance state, and carrying out visualization processing and data analysis on the calculation data to summarize the internal law of the calculation data. Influences of electric field intensity and roughness factors on complex electrowetting are described through a contact angle and some interface characteristics, and an electrowetting expansion mechanism of micro-nano liquid drops on a rough wall surface is explained from a microscopic perspective.

The utility model discloses an atomizer and an electronic atomizing device thereof, the atomizer comprises an inner shell, a liquid storage piece, an atomizing tube, a liquid storage bottle, a capillary tube and a sealing piece, the atomizer enables the liquid storage bottle to continuously supply liquid to the liquid storage piece through the capillary tube, and when the liquid is in contact with the inner wall of the capillary tube, the liquid is atomized. A certain meniscus is formed on the inner wall of the capillary tube due to the interaction between liquid molecules and the solid surface. The surface tension causes the liquid to rise or fall along the capillary. The liquid storage bottle and the liquid storage part are connected through the capillary tube, and it is ensured that atomized liquid can stably and continuously reach the liquid storage part. Through the design of parameters such as the pipe diameter, the material and the length of the capillary tube, accurate control over the flow of atomized liquid is achieved, the requirement for continuous maintenance of aerosol concentration and taste is met, the suction effect is improved, and the problem of core burning caused by insufficient supply of the atomized liquid is solved.

The application provides a liquid nitrogen wetting contact angle measuring device for a super-low-temperature solid surface, comprising a super-low-temperature solid surface cooling assembly, a nitrogen atmosphere protection assembly, a liquid nitrogen titration assembly and a wetting contact angle observation assembly, wherein the super-low-temperature solid surface cooling assembly can make the sample quickly enter and maintain the super-low-temperature state during the test through liquid nitrogen circulation and a silver cooling plate. The nitrogen atmosphere protection assembly discards the commonly used vacuum scheme in engineering and adopts dry nitrogen protection to avoid the rapid gasification of liquid nitrogen under vacuum. The liquid nitrogen titration device realizes the dropping of liquid nitrogen at different heights, supports the related research on wetting contact angle measurement and droplet impact dynamics. The wetting contact angle observation assembly guarantees the observation of the droplet shape under the super-low-temperature environment through a light source plate, a blowing device and the like. The application fills the gap in the research on the wetting and spreading behavior of super-low-temperature fluid on a cooled solid surface and has important value for super-low-temperature fluid lubrication and super-low-temperature fluid transportation.

Particulate matter, such as fog, snow, rain, steam, vehicle exhaust, debris (plastic bags), etc. may cause one or more sensor types to generate false positive solid surface detections. In particular, various depth measurements may be impeded by particulate matter. Identifying false positive return(s) may comprise clustering lidar points, determining differences in range indicated by two different lidar devices having lidar points in the cluster, determining first differences that are more negative than a negative difference threshold and second differences that are more positive than a positive difference threshold, determining a first portion of lidar data in the cluster associated with the first differences and the second differences is associated with particulate matter or debris, and controlling a vehicle based at least in part on suppressing the first portion of the lidar data or indicating that the first portion of the lidar data is associated with particulate matter or debris.

To provide a solid surface treatment device and method that can perform sufficient surface treatment with high accuracy with a small number of trimming scans when trimming solids such as thin films using GCIB.SOLUTION: In a solid surface treatment device that flattens the surface of a solid using a gas cluster ion beam, a predetermined filtering process is first performed on the film thickness of the solid, a surface profile simulation of the solid is performed from the result of the predetermined filtering process on the solid and a trimming profile of the gas cluster ion beam calculated from a removal amount function, surface processing (Trimming) of the solid is performed based on the result of the surface profile simulation of the solid, the result of the surface processing (Trimming) is measured, the measured result of the surface processing is compared with a target value (Target), and the processing is repeated until the result of the surface processing matches the target value.SELECTED DRAWING: Figure 3

A thermoformable acrylic article, comprising: a basin portion, a deck at least partially surrounding the basin portion, wherein the thermoformable article is made of a thermoformable composition comprising: a) about 35-95 wt% an acrylic pre-polymerized syrup; b) about 0-10 wt% of a comonomer; and c) about 5-65 wt% of a filler, wherein the filler has an average particle size (d50) in a range of 0.1 μm to 50 μm, and, wherein the surface of the thermoformable article has a matte finished.

This application discloses a marking coating system and a production system for parts to be coated. The marking coating system of this application is used to coat photosensitive paint onto the marking positions of parts to be coated, and includes a spraying device, an image detection component, and a photocuring device. The spraying device sprays photosensitive paint onto the marking positions of the parts to be coated to form a photosensitive paint film. The image detection component is disposed on the discharge side of the spraying device and is used to detect the size of the photosensitive paint film sprayed onto the marking positions. The photocuring device is located on the discharge side of the spraying device and is spaced apart from the spraying device. The image detection component is located between the spraying device and the photocuring device, and the photocuring device emits light to cure the photosensitive paint film onto its surface. Coating the marking positions with an electrolyte-resistant photosensitive paint film reduces the wettability of the electrolyte liquid on the solid surface of the QR code coating, making it less prone to spreading and adhesion of the electrolyte, thereby protecting the clarity of the QR code coating area.

The invention relates to a large-aperture fixed surface radio telescope system and an on-orbit construction method, and the system comprises a radio telescope which is a large-aperture radio telescope; the mechanical arm is configured to perform in-orbit installation on the plurality of second antenna panel split plates so as to form the second antenna panel; and a satellite platform configured to carry the radio telescope and the robotic arm. The radio telescope includes: a first antenna panel; the second antenna panel comprises a plurality of second antenna panel sub-plates; and the butt joint device is configured to be in butt joint with the first antenna panel and the second antenna panel. The docking device can be conveniently docked with the second antenna panel on the outer side of the first antenna panel, and locking is completed through motor retraction after docking locking, so that the telescope system has two states of assembling and working, the requirement for the control precision of a mechanical arm is reduced, and the collision risk is reduced.

Litter formed of extruded pellets containing water soluble binder sufficient to self-clump when wetted producing pellet clumps having a clump retention rate of at least 90% and which shrink after clump formation during drying producing a clump pulls away from any contacting solid surface minimizing adhesion therebetween. Such clumps preferably also have a crush strength of at least 15 PSI when dry. Pellets preferably contain water-soluble binder formed of starch physically modified during extrusion that solubilizes when wetted to facilitate clumping while opening the interior of the pellet improving absorption capacity. A preferred litter is formed of a mixture of extruded pellets of different sizes producing litter composed of extruded pellets falling within a plurality of different size ranges with the smaller sized pellets being fines that cause horizontally extending clumps to form on top of the litter.

The utility model relates to the technical field of contact angle testing, and discloses an automatic sample injection contact angle tester of an automatic inclined objective table, which comprises a base, a support arranged on the base, an XY adjusting table mounted at the top end of the support, an electric lifting sliding table mounted at the moving end of the XY adjusting table, a sample injection needle piston fixture block mounted at the moving end of the electric lifting sliding table, and a sample injection needle piston fixture block mounted at the moving end of the sample injection needle piston fixture block. A sample injection needle cylinder fixing buckle is arranged on the sample injection needle piston clamping block, a micro sample injection needle is arranged in the sample injection needle cylinder fixing buckle, and an optical objective table is arranged below the sample injection needle cylinder fixing buckle. And by automatically adjusting the objective table and the sample injection needle, the requirement of manual operation is remarkably reduced, so that the testing efficiency and repeatability are improved. According to the system, the contact angle can be measured quickly and accurately, and the operation complexity is effectively reduced. By combining the automatic sample injection function and the inclination capability of the objective table, the measurement of the contact angle at various inclination angles becomes true, and the wettability and the anti-skid performance of the solid surface can be evaluated more accurately.

A foldable parabolic cylinder fixed surface antenna structure relates to the technical field of parabolic cylinder fixed surface antennas, and comprises a plurality of panel units, and each panel unit comprises a central panel; the extension panel group is formed by sequentially connecting a plurality of sub-panels in a hinged mode, and the sub-panel on the innermost side of the extension panel group is hinged to the center panel; the flexible transmission assembly is configured to simultaneously drive folding motion between the central panel and the innermost side sub-panel and between adjacent sub-panels in the extension panel group; the reset force providing mechanism is configured to provide unfolding reset force between the central panel and the innermost sub-panel and between the adjacent sub-panels; the adjustable bracket mechanism is connected with each central panel and has a first working form: enabling each central panel to be coplanar to form a continuous reflecting surface; and in the second working state, the central panels are stacked in parallel. Through the multi-stage folding design, the overall storage size can be effectively compressed, and therefore the strict space requirements for transportation and on-site rapid deployment are met.

A method of isolating and separating a target macromolecule, such DNA (double stranded or single stranded), RNA (double stranded or single stranded), messenger RNA, or other oligonucleotide or oligonucleoside, from a sample by binding the target macromolecule to an affinity ligand that is bound to a surface is disclosed. The method may be employed in chromatography or any other of the separation sciences.

A method of manufacturing a molded solid surface includes mixing ferrous particles into a resinous material, injecting the resinous material including the ferrous particles into a mold, the mold including an upper mold half and a lower mold half, creating a predetermined pattern in the resinous material by applying a force to the ferrous particles in the resinous material toward a surface of the upper mold half or the lower mold half using one or more magnets, and curing the resinous material in the mold into the molded solid surface.